Shared Memory
A shared memory is memory that multiple Processes can access. It’s as simple as that.
This is an important system in Distributed Systems.
How do we actually implemented shared memory?
- You can do this with Boost
The problem with Shared Memory
Shared memory doesn’t scale well as the number of processes that access it increases.
- This is due to access time degradation: when several processors try to access the same memory location it causes contention. Trying to access nearby memory locations may cause false sharing. Source: Wikipedia
Resources
CUDA
See CUDA Shared Memory.
https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#shared-memory